Abstract: Alloys according to the present invention exhibit good resistance to erosion and stress corrosion cracking. The contents of individual components in these alloys as expressed in terms of wt. % are as follows:______________________________________ 0.35 .ltoreq. C .ltoreq. 1.7, Si .ltoreq. 2.5, 10 .ltoreq. Mn .ltoreq. 25, 6 .ltoreq. Cr .ltoreq. 20, 0.5 .ltoreq. V .ltoreq. 7, 0.5 .ltoreq. Nb .ltoreq. 3, and N .ltoreq. 0.1, Fe = balance. ______________________________________Further, a mutual relationship represented by the following formula is maintained amoung the contents of V, Nb and C:(V/5+Nb/8)/C.gtoreq.1.

Abstract: The present invention relates to a heat-resistant cast steel that comprises, on a weight basis, 0.06-0.20% C, 0.01-0.10% N, 0.4-2.0% Si, 0.3-1.0% Mn, not more that 0.04% P, not more than 0.04% S, 15-22% Cr, 0.01-2.0% Nb, with the balance being Fe and incidental impuriites, and further preferably that is retained at a temperature not higher than the temperature of two-phase mixed region for a cerain time and then is gradually cooled, after casting;A heat-resistant cast steel that comprises, on a weight basis, 0.06-0.20% C, 0.01-0.10% N, 0.4-2.0% Si, 0.3-1.0% Mn, not more than 0.04% P, not more than 0.04% S, 15-22% Cr, 0.01-2.0% Nb, 0.2-1.0% Mo, with the balance being Fe and incidental impurities, and further preferably that is retained at a temperature not higher than the temperature of two-phase mixed region for a certain time and then is gradually cooled, after casting;A heat-resistant cast steel that comprises, on a weight basis, 0.06-0.20% C, 0.01-0.10% N, 0.4-2.0% Si, 0.3-1.0% Mn, not more than 0.

Abstract: A high-strength high-Cr steel with excellent high-temperature strength and toughness as well as improved resistance to oxidation and high-temperature corrosion is disclosed, which consists essentially of, in weight %:C : 0.04-0.2%, Si: not greater than 0.7%, Mn: 0.1-1.5%, Ni: not greater than 1%, Cr: 8-14%, Mo: 0.01-1.2%, W: 0.8-3.5%, V : 0.1-0.3%, Nb: 0.01-0.2%, Al: not greater than 0.05%, Cu: 0.4-3%, Mg: 0.0005-0.5%, N: 0.001-0.1%, B : 0-0.02%,at least one of La, Ce, Y, Ca, Ti, Zr, and Ta each in an amount of 0-0.2%, andFe and incidental impurities: balance.

Abstract: A high corrosion-resistant electromagnetic stainless steel comprises particular amounts of C, Si, Mn, Cr, Mo, Ti, Cu, Al and the balance being Fe, and is used as a material for a housing of electronically controlled fuel injection system for automobile or an electromagnetic valve. This steel may further contain particular amounts of Pb, Ca, Se, S and rare earth elements, if necessary.

Abstract: A weldable ferritic stainless steel and a method for producing the same is provided wherein the steel consists essentially of up to 0.03 carbon, up to 0.05 nitrogen, 10 to 25 chromium, up to 1.0 manganese, up to 0.5 nickel, up to 1.0 silicon, 0.03 to 0.35 titanium, 0.10 to 1.0 niobium, optionally up to 1.2 aluminum, the balance essentially iron, the amounts of titanium and niobium varying inversely and not more than necessary to satisfy specific thermodynamic equations and the method includes casting the steel into ingots or slabs without the precipitation of detrimental intermetallic or nonmetallic titanium compounds so that the hot-rolled band gauge, without grinding, can be cold rolled to final gauge sheet or strip free of open surface defects.

Abstract: A steel for the production of as rolled products (products requiring no subsequent reheat treatment after finish rolling) for use in underground equipment and tools is provided which has a hardness in the order of 500 HV (Vickers); a Charpy toughness value at 20.degree.C. of 35 to 50 Joule; an excellent to fair corrosion resistance in simulated mild mine water as herein defined; and good to fair weldability; the steel having the following constitution on a percentage mass per mass basis:C=0.13 to 0.19; Cr=8.5 to 12.0;Ni=0 to 3.0; Si=0.10 to 0.5;Mn=0.3 to 0.9; Mo=0 to 1.4;Ti=0.01 to 0.04; Nb=0 to 0.06;Al=0.02 to 0.06; P=0.035(max); andS=0.02 (max); the balance being Fe.

Abstract: The alloys of this invention illustrate good property on erosion resistance. The compositions of these alloys are C: more than 0.09 wt. % and less than 1.7 wt. %, Si: 2.5 wt. % or less, Mn: 10-25 wt. %, Cr: 6-20 wt. %, V: more than 4 wt. % and less than 7 wt. % , N: 0.1 wt. % or less, and Fe: the rest. Optional small content is Ni and /or Mo.

Abstract: Amorphous alloys containing zirconium as an amorphus forming metal and having the formula X.sub..alpha. Z.sub..gamma. wherein X is at least one of Fe, Co and Ni, .alpha. is 80 to 92 atomic %, Z is zirconium, .gamma. is 8 to 20 atomic % and the sum of .alpha. and .gamma. is 100 atomic %, cause very little variation of properties during aging and embrittlement because they contain no metalloid as the amorphous forming element, and they further have excellent strength, hardness, corrosion resistance and heat resistance and maintain superior magnetic properties which are characteristic of iron group elements.

Abstract: A weldable ferritic stainless steel and a method for producing the same is provided wherein the steel consists essentially of up to 0.03 carbon, up to 0.05 nitrogen, 10 to 25 chromium, up to 1.0 manganese, up to 0.5 nickel, up to 1.0 silicon, 0.03 to 0.35 titanium, 0.10 to 1.0 niobium, optionally up to 1.2 aluminum, the balance essentially iron, the amounts of titanium and niobium varying inversely and not more than necessary to satisfy specific thermodynamic equations and the method includes casting the steel into ingots or slabs without the precipitation of detrimental intermetallic or nonmetallic titanium compounds so that the hot-rolled band gauge, without grinding, can be cold rolled to final gauge sheet or strip free of open surface defects.

Abstract: An austenitic stainless steel alloy showing a high cavitation erosion resistance making it particularly useful for the manufacture and/or repair of hydraulic machine components. The alloy consists essentially of from 8 to 30% by weight of Co; from 13 to 30% by weight of Cr; from 0.03 to 2.0% by weight of C; up to 0.3% by weight of N; up to 5.0% by weight of Si; up to 1.0% by weight of Ni; up to 2.0% by weight of Mo; and up to 16% by weight of Mn, the balance being substantially Fe, with the proviso that at least one of the following conditions is satisfied: the amount of C is higher than 0.3%, and/or the amount of Si is higher than 3.0% and/or the amount of Mn is higher than 9.0%.

Abstract: The invention concerns a strip or sheet of ferritic stainless steel of the following composition (% by weight):(C+N)<.060;Si<0.9;Mn<1;Cr=15 to 19;Mo<1;Ni<0.5;Ti<0.1;Cu<0.4;S<0.02;P<0.045;Zr=0.10 to 0.40, and 7(C+N).ltoreq.Zr.ltoreq.7(C+N)+0.15;Nb=0.25 to 0.55, in non-combined form;Al=0.020 to 0.080;Fe=the balance,in which Al is essentially in solid solution.The process for the production of the sheet or strip comprises a final annealing operation which is carried out at between 980.degree. and 1020.degree. C., typically for 0.5 to 5 minutes at between 990.degree. and 1010.degree. C.The strip or sheet according to the invention is used for any application requiring an economic compromise in regard to ductility (sheet and welds), hot resistance and resistance to corrosion, for example in motor vehicle exhaust manifolds.

Abstract: A soft magnetic stainless steel consists essentially of, by weight, up to 0.03% of C, 0.40 to 1.10% of Si, up to 0.50% of Mn, 9.0 to 19.0% of Cr, 0.31 to 0.60% of Al, 0.01 to 0.03% of S, 0.10 to 0.30% of Pb, 0.02 to 0.25% of Ti, 0.02 to 0.10% of Zr, and up to 0.03% of N, and the balance of Fe and inevitable impurities, with a proviso that the C+N content is not more than 0.04% and the Si+Al content is not more than 1.35%. The steel has a magnetic flux density of 13,000 G or more and a coercive force of 1.2 Oe or less as magnetic properties, and a tensile strength of 41 kgf/mm.sup.2 or less and a critical compressibility of 50% or more as formability in cold forging. The steel is suitable for manufacturing, by cold forging, parts with complex shapes such as cores of solenoid operated valves and electromagnetic clutches, and bodies of electronic fuel injection apparatuses for internal combustion engines.

Abstract: A soft magnetic stainless steel consisting essentially of, by weight, up to 0.03% of C, 2.0 to 3.0% of Si, up to 0.40% of Mn, 0.015 to 0.050% of S, 10 to 13% of Cr, 0.05 to 0.20% of Ti, up to 0.03% of N, up to 0.010% of Al, and the balance of Fe and inevitable impurities, with a proviso that the C+N content is not more than 0.05%. The steel has a maximum permeability of not less than 4400 and a magnetic flux density of not less than 12,000 G as magnetic properties, together with a fatigue strength after welding of not lower than 120 kgf cm.sup.2, retains the magnetic properties even after annealing at a high temperature of 920.degree. C., and is excellent in electrical resistance, corrosion resistance, mechanical properties and machinability.

Abstract: A spinodal decomposition type ternary magnetic allioy is provided which contains, by weight, 3 to 40% vanadium, 5 to 45% chromium and the balance essentially iron. Optionally the alloy may contain at least one additional element, said additional element being present individually in an amount of 0.1 to 5% by weight and not greater than the amount of either vanadium or chromium. The alloy is easy to work and has excellent hard or semi-hard magnetic properties comparable with those of conventional iron-chromium-cobalt alloys. Yet the alloy is low in material cost and simple and inexpensive to manufacture.